Handle NULL in Group Name

WinLineArtikelnummerGenerator/Winline.vb

@@ -12,6 +12,9 @@ Public Class Winline
     Public ReadOnly Property ARTICLE_ALREADY_EXISTS = "ARTICLE_ALREADY_EXISTS"
     Public ReadOnly Property UNKNOWN_ERROR = "UNKNOWN_ERROR"
 
+    Private Const ACTIONCODE_CHECK = 0
+    Private Const ACTIONCODE_IMPORT = 1
+
     Public Sub New(LogConfig As LogConfig, EximDatabase As Database, WinlineDatabase As Database, Config As Config)
         _Logger = LogConfig.GetLogger()
         _EXIM = EximDatabase
@@ -70,6 +73,14 @@ Public Class Winline
         End Try
     End Function
 
+    Private Function NotNull(Of T)(ByVal value As T, ByVal defaultValue As T) As T
+        If IsNothing(value) OrElse String.IsNullOrEmpty(value.ToString) OrElse IsDBNull(value) Then
+            Return defaultValue
+        Else
+            Return value
+        End If
+    End Function
+
     Public Function GetGroupsByVendor(VendorCode As String) As List(Of ProductGroup)
         Try
             Dim oDatatable = _EXIM.GetDatatable($"SELECT * FROM TBDD_ARTICLE_GENERATOR_GROUPS WHERE CODE = '{VendorCode}'")
@@ -77,10 +88,10 @@ Public Class Winline
 
             For Each oRow As DataRow In oDatatable.Rows
                 Dim oGroup As New ProductGroup() With {
-                    .Guid = oRow.Item("GUID"),
-                    .Name = oRow.Item("NAME"),
-                    .GroupId = oRow.Item("GROUP"),
-                    .Code = oRow.Item("CODE")
+                    .Guid = NotNull(oRow.Item("GUID"), 0),
+                    .Name = NotNull(oRow.Item("NAME"), "(Kein Name)"),
+                    .GroupId = NotNull(oRow.Item("GROUP"), 0),
+                    .Code = NotNull(oRow.Item("CODE"), "(Kein Code)")
                 }
 
                 oGroups.Add(oGroup)
@@ -174,6 +185,9 @@ Public Class Winline
             Dim oSuccess As XmlNode = oDocument.DocumentElement.SelectSingleNode("OverallSuccess")
 
             If oSuccess.InnerText.ToUpper = "TRUE" Then
+                For Each oNode As XmlNode In oDocument.DocumentElement.SelectNodes("Success")
+
+                Next
                 _Logger.Info("Request was SUCCESSFUL!")
 
                 Return True
@@ -214,6 +228,7 @@ Public Class Winline
         Dim oUseShape As String
         Dim oDefaultShape As String
         Dim oMultipleShapes As String
+        Dim oActionCode As Integer = ACTIONCODE_IMPORT
 
         If IsSerialnumberArticle = True Then
             oArticleType = 0